3842647

Information

• Patent Grant
• 3842647

• References
• Source

• Patent Number

  3,842,647

• Date Filed

  Not available

• Date Issued

  Tuesday, October 22, 1974
  51 years ago

• CPC

  • B21D11/08 - Bending by altering the thickness of part of the cross-section of the work
  • B21D11/206 - Curving corrugated sheets
  • B21D13/04 - by rolling
  • E04B1/3205 - Structures with a longitudinal horizontal axis
  • E04B7/08 - Vaulted roofs
  • E04B7/102 - Shell structures
  • E04B2001/3217 - Auxilliary supporting devices used during erection of the arched structures
  • E04B2001/3276 - Panel connection details
  • E04B2001/3288 - Panel frame details

• US Classifications

  • 072 - Metal deforming